The Amp Garage

Do you think it is possible/probable though that Brian Wilson had a 50W and a 100W amp? It seems odd that Ben would misread the serial number on the back of the chassis right in front of him. Also #97 (the real one) has the sesame street block style DUMBLE logo on the back, but #109 has the script ...

Here are some links and pictures posted in them that are related to this topic (Dumble amps of the Beach Boys): https://ampgarage.com/forum/viewtopic.php?f=4&t=499 d-combo.jpg beach boys dumble rear.jpg https://www.gbase.com/powered/overland-express/gear/dumble-overdrive-special-1 https://www.fretbo...

... I don't have access to the Dumble book. ... Therefore, I've attached another picture of Dumbleland Special #008 with the two smaller potentiometer knobs for the two filter rotary switches: DL #008.jpg Incidentally, an "Odyssey Special" 100W with such smaller knobs for the filters was discussed ...

... Maybe it didn't have the post-PI driver in it originally and that was added? Need to see the documentation. To date, I have never heard of or seen a Dumble amplifier with at least four KT88 or 6550 power tubes without a post-PI driver. Therefore, I personally consider it rather unlikely that th...

Different size knobs, inaccurate positioning, and different indicator markings. Actually looks pretty crudely done. As can be seen from Dumbleland Special 150W #008 (pictures for example in "A Dumble Book" on page 90 and on this picture here https://ampgarage.com/forum/download/file.php?id=61974&mo...

... One obvious thing is the filter selector knobs and markings on the front panel are not original to that amp, and that alone qualifies as a topology change. The story told by Berlin is here: https://youtu.be/rVF7WhnAfkk?t=80. In the video you linked, I couldn't find any comments from D. Berlin i...

Thanks for the link to the Wikipedia explanations. ... AFAIK it was unusual to convert one type of amplifier to another, in the sense that its basic topology was changed. One such example is the Dumble Special to SSS conversion for SRV shown in the NAMM show videos (picture above https://ampgarage.c...

The website http://dumble.com/ makes the following claim: "Dumble.com is maintained by the successor to Mr. Dumble’s business, who owns … records and databases of all authentic DUMBLE® amplifiers ever in existence sufficient to verify authenticity. …" This claim implies, at least according to my und...

,,, He recounted to me that the amp chassis designed in Santa Cruz by HAD were not suited for 4 noval tubes (seemingly in his understanding of HAD's opinion) and that if this amp had 4 noval tubes it would impact the sound of the amp. In my opinion, the mere existence of the Dumblelator and the Dum...

... I'm not sure that it matters to anyone other than collectors. I'm much more interested in the circuits. In my opinion, the development of the circuit details of the devices built by Alexander Dumble is somewhat easier to understand in their respective historical (and thus also music-historical)...

Ok, so the guys who claim to know everything, (ie Drew Berlin) are misleading everyone then with wrong information by calling it SSS (attached) I may have expressed myself in a confusing way: I have absolutely no objection to the assumption that Alexander Dumble converted this Dumble Special into a...

Bombacaototal wrote: ↑Thu Mar 27, 2025 9:50 am ... Whatever he called a SSS is a SSS ...

And how do you know he called #8 in your SSS list "Steel String Singer" and not “Dumble Special”?

There were actually 12 SSS amps (at least) Maybe one has been counted twice? In my opinion, a discussion about the correct number of SSS, ODR, DL, etc. amplifiers built by Alexander Dumble during his lifetime makes little sense without the participants in that discussion first agreeing on which kin...

Given the alleged completeness of these documents, how do you explain the fact that the expert report signed by D. Berlin for the "Dumbleland Concert Amplifier" linked below (the expert report is shown in the last image) states, "It is believed that no more than 30 Dumbleland Amplifiers were ever ma...

martin manning wrote: ↑Wed Mar 26, 2025 6:50 pm...the Dumble Preservation Society (DPS) has all the records,...

Source?